/// <summary>
/// Seed Xoroshiro128+ with 128 bit seed. If there are less than 128 bits in the source array, it will be padded. Any extra will be ignored.
/// </summary>
/// <param name="bits">Bits for seed.</param>
/// <param name="startindex">Start index of the array.</param>
public Xoroshiro128PlusRNG(byte[] bits, int startindex)
{
if (startindex >= bits.Length)
{
throw new ArgumentOutOfRangeException(nameof(bits));
}
byte[] nw = new byte[bits.Length - startindex];
Array.Copy(bits, startindex, nw, 0, nw.Length);
if (nw.Length < 16)
{
var ob = nw;
bits = new byte[16];
Array.Copy(ob, bits, bits.Length);
}
else
{
bits = nw;
}
var s0 = BitConverter.ToUInt64(bits, 0);
var s1 = BitConverter.ToUInt64(bits, sizeof(ulong));
xoroshiro = new Xoroshiro128Plus(s0, s1);
}
/// <summary>
/// Seed Xoroshiro128+ with 128 bit seed. If there are less than 128 bits in the source array, it will be padded. Any extra will be ignored.
/// </summary>
/// <param name="bits">Bits for seed.</param>
public Xoroshiro128PlusRNG(byte[] bits)
{
if (bits.Length < 16)
{
var ob = bits;
bits = new byte[16];
Array.Copy(ob, bits, bits.Length);
}
var s0 = BitConverter.ToUInt64(bits, 0);
var s1 = BitConverter.ToUInt64(bits, sizeof(ulong));
xoroshiro = new Xoroshiro128Plus(s0, s1);
}
/// <summary>
/// Seed Xoroshiro128+ with 128 bit seed from decimal.
/// </summary>
/// <param name="bits">Seed bits</param>
public Xoroshiro128PlusRNG(decimal bits)
{
xoroshiro = new Xoroshiro128Plus(bits);
}
/// <summary>
/// Seed Xoroshiro128+ with 128 bit seed.
/// </summary>
/// <param name="state0">First 64 bits</param>
/// <param name="state1">Second 64 bits</param>
public Xoroshiro128PlusRNG(ulong state0, ulong state1)
{
xoroshiro = new Xoroshiro128Plus(state0, state1);
}
/// <summary>
/// Seed Xoroshiro128+ with system time.
/// </summary>
public Xoroshiro128PlusRNG()
{
xoroshiro = new Xoroshiro128Plus();
}
/// <summary>
/// Seed Xoroshiro128+ with 128 bits from System.Random
/// </summary>
/// <param name="r"></param>
public Xoroshiro128PlusRNG(Random r)
{
xoroshiro = new Xoroshiro128Plus(r);
}
/// <summary>
/// Seed Xoroshiro128+ with 64 bit integer using splitmix64.
/// </summary>
public Xoroshiro128PlusRNG(ulong seed)
{
xoroshiro = new Xoroshiro128Plus(seed);
}
/// <summary>
/// Initialise xoroshiro128+ from the state of another.
/// </summary>
/// <param name="other">Other instance to copy state.</param>
public Xoroshiro128Plus(Xoroshiro128Plus other)
{
Seed(other.state0, other.state1);
}
/// <summary>
/// Seed Xoroshiro128+ from other Xoroshiro128PlusRNG instance
/// </summary>
public Xoroshiro128PlusRNG(Xoroshiro128PlusRNG other)
{
xoroshiro = new Xoroshiro128Plus(other.xoroshiro);
}
